Window-lock.



' A. RE.

WINDOW LOCK.

APPLICATION menraov. 2|. |916.

1,226,597. Patented May .15, 1917.

nnrnnnnn, or NEW YORK, N. Y.

WINDOW-LOCK.

Specification of Letters Patent.

Patented May 15, 191 *7.

Application led November 21, 1916. Serial N o. 132,598.

To all whom z' 'may concern:

Be it known that I, ALFRED RE, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and `useful Improvements in Window-Locks; and I do hereby declare the following to be a full, clear, `and exact description of the invention, such as `will enable others skilled in the art to which it appertains` to make and use the same.

This invention relates to windowlocks and has for its object to provide a lock of this character which may beapplied to the `window sash so as to securely and eifectively lock the sash together so that it will be impossible to move the window sash relative to one another.

Another object of the invention is to provide a window lock embodying a keeper adapted to be secured to one of the window sash, and a pivotally mounted hook supported upon the other sash, said `hook adapted to engage the keeper and to be locked` in engaged position.

A further object of the invention `is to provide a bracket having a hook pivotally mounted thereon and a spring actuated plunger carried by 'the hook designed to engage a recess formed in the support when the hook is moved into engagement with the keeper. i l

A still further object of the invention is the provision `of a bracket having a hook pvotally mounted thereto, a spring actuated plunger disposed through the bracket and designed to engage a recess in the hook when the latter is movedA into engagement with the keeper, .and means carried by the bracket coperating withnsaid plunger to lock it against movement when desired.

. A still further object `of the invention is the provision of a bracket having a hook pivotally mounted thereon, a spring actuated plunger carried by the hook designed to engage a recess in the bracket, a spring actuated plunger carried by the bracket' and designedto engage a recess in the hook and means to lock oneof'said plungersfagainst movement'when desired. ,i

With these and other objects in view as will appear as the description proceeds, the invention comprisesk the various novel features of construction, combination and arrangement of parts as will be more fully described hereinafter and set forth with particularity in the appended claims.

Referring to the drawings,

Figure l is an end elevation of my improved window lock arranged in locked position.

Fig. 2 is a similar view showing it in unlocked position.

Fig. 8 is a side elevation of Fig. 1.

Fig. 4 is a vertical sectional view taken on the line 4 4 ofFig. l.

Similar characters of reference are used to denote like parts throughout the accompanying drawingsand the following description.

Referring more particularly to the drawings, the reference numeral 1 indicates the vertically disposed bracket of myl improved window lock which is provided with a flanged base 2 designed to be secured to the top of the bottom window sash through the medium of suitable screws 3.

This bracket 1 has pivotally mounted to it at its upper end. a right angular hook 4 through the mediumof a pivotal pin 5 that extends entirely through the upper end of the hook and bracket. This hook 4 extends downwardly and is formed with a right angular hook or nger 6 at its lower end, which is designed to engage a keeper 7 which is of substantially inverted U shape, and which is provided with lateral eXtensions 8 through which suitable screws 9 are passed to secure the keeper to the upper window sash. This keeper 7 is provided on each end with laterally projecting pins l0 that project over each of the screws 9 so that it will be impossible to remove these screws. If some such means were not provided, it would be an easy matter for some one to remove these screws and take away the keeper 7 so as to open one of the window sash.

The hook 4 as clearly indicated in Fig. 4 of the drawings, is provided with a laterally projecting handle 11 through which is slidably mounted a plunger 12 on the inner end of which is a plunger head 13 slidably mounted within a. recess 14 formed in the inner wall of the hook, and positioned around the plunger 12 between the head 18 and the inner end of the recess 14 is an eX- pansible spring 15, which is designed to In addition to the spring actuated lock--v ing plunger just described, I provide an additional spring actuated plunger 18 which extends transversely through the bracket 1 at a point below the recess 16 and has its inner end provided with a plunger head 19, which is --designed to engage a recess 20 formed in the opposed wall of the hook l. This head 19 is slidably mounted and is designed to engage a recess 21 formed in the inner opposed wall of the bracket 1, and positioned upon the plunger 18 between the head 19 and inner end of the recess 21 is an expansible spring 22, which is designed to urge the plunger 19 into the recess 20 when the hook l is moved into engagement with the keeper 7. The outer end of this plunger 18 is provided with a thumb piece 28 whereby the plunger may be moved outwardly of the bracket in order to disengage the plunger head 19 from therecess 20 of the hook.

This plunger 18 is provided adjacent its outer end with a transverse groove 24 which is designed to receive a rotatable locking pin 25 that is disposed through the bracket 1 at right angles to the plunger 18. This rotatable locking pin 25 yis cut away on one side to provide a flat surface 26 which when rotated so as to be parallel to and adjacent the top of the plunger 18, will permit the plunger to be withdrawn to disengage the head 19 from the recess 20 so that the hook may be disengaged from the keeper. Vhen it is desired to lock the upper and lower window sash against relative movement, it is simply necessary to grasp the handle 11 and swing the hook so as to engage the angular end G beneath the keeper 7, so that the instant the end 6 of the hook is moved into locking position beneath the keeper, the spring actuated plunger heads 13 and 19 will automatically engage the recesses 16 and 20 of the bracket and hook respectively, thus locking the hook in locked position against movement. Immediately after the plunger heads have snapped into their respective recesses, the pin 25 is rotated through the medium of the thumb piece 27 xed to its outer end, so` that the circumferential edge of the pin engages within the circular concavity Q4, thus preventing the plunger 18 from being moved outwardly to disengage the plunger head 19 vfrom the recess 20 of the hook. From this it will be seen that this rotatable locking pin Q5 serves to form a lock with the spring actuated plunger-s.

In order to prevent the plunger 18 from revolving, I employ a locking pin '27 that projects laterally from one side of the bracket 1 into a recess 28 that extends transversely through the circumferential edge of the finger piece 23 secured to the outer end of the plunger. By this construction the inger piece i3 may be moved inwardly or outwardly of the bracket 1 and yet be pre vented from rotating.

TWith the construction shown in the draw ings, and by particular reference to Figs. 1 and Q, it will be seen that when the hook is swung out of engagement with the keeper, that the lower end portion 6 of the hook will be swung into engagement with the flanged piece 2 of the bracket 1 in order to prevent the hook from being swung outwardly of the keeper too far or to such a distance that would allow the' plunger head 19 to be forced outwardly of the bracket in front of the hook.

It it is desired, `and in preference to the Y bottom portion 6 of the hook engaging the flanged piece 2, a stop pin 29 may be secured to the bracket 1 so as to pro-ject laterally therefrom to be engaged by the angular portion G of the hook when the latter is swung outwardly of the keeper.

Claims:

1. In a window lock, the combination of a keeper, a bracket adapted to be mounted adjacent the keeper, a hook swingingly mounted upon the bracket and adapted to engage the keeper, locking means carried by the hook, and locking means carried by the bracket, both of said locking means adapted to automatically operate and lock the hook to the keeper, when the hook is moved into engagement with the keeper.

2. In a window lock, the combination of a keeper, a bracket designed to be mounted adjacent said keeper, a vertically disposed hook pivotally mounted on the bracket and designed to engage the keeper, said hook formed with a recess, a spring actuated plunger disposed transversely through the bracket and adapted to lockingly engage the recess of said hook, a thumb piece fixed to the outer end of said plunger and provided with a recess extending transversely through its edge, a pin projecting laterally from said bracket and within said transverse recess to prevent rotation of the plunger, and means to lock said plunger against longitudinal movement.

3. In a window lock, the combination of a keeper, a bracket vdesigned to be mounted adjacent said keeper, a vertically disposed hook pivotally mounted on 'the bracket and designed to engagethe keeper, said hook formed with a recess, a spring actuated :5 disposed through the plunger disposed transversely through the bracket and adapted to lockingly engage the recess of the ho-ok, said plunger having a transverse concavty, a rotatable locking pin bracket and the plunger concavity at right angles to said plunger and having a cut-away portion on one side to provide a fiat surface, said locking pin adapted to be rotated so that the iat surface will be parallel to and adjacent the top of the plunger whereby the plunger may be moved longitudinally, and means to prevent rotation of said plunger.

Ll. In a Window lock, the con'ibination of a keeper, a bracket designed to be mounted adjacent said keeper, a vertically disposed hook pivotally mounted on the bracket and designed to engage the keeper, said hook formed With a recess, a spring-actuated plunger disposed transversely through the bracket and adapted to lockingly engage the recess of said hook, means to prevent rotation of said plunger, and means to lock said plunger against longitudinal movement.

5. In a Window lock, the combination of a keeper, a bracket designed to be mounted adjacent the keeper, a vertically disposed hook having a transverse recess therein swingingly mounted upon said bracket and designed to engage said keeper, a spring aci tuated plunger disposed transversely through the bracket and adapted to lockingly engage the transverse recess of said hook, and means coperating With said spring actuated plunger to lock the plunger against movement.

6. In a Window lock, the combination of a keeper, a bracket designed to be mounted adjacent the keeper and formed with a recess therein, a hook pivotally mounted upon the bracket and formed With a recess therein, spring actuated plungers disposed through said bracket and hook and designed to lockingly engage the recesses thereof respectively, and means for locking one of said plungers against movement when the hook has been moved to a locked position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

ALFRED RE. Witnesses:

EDWARD J. BARBIE, `FRANK ScnLLATo..

Copies of this patent may be obtained for five cents each; by addressing the Commissioner of Patents.

Washington, ID. G. 

